Nikon Corporation will release the Litho Booster 1000 alignment station in January 2027, promising a 35 percent gain in measurement accuracy and a 10 percent boost in productivity over the previous generation. The system measures an entire wafer surface before exposure and feeds correction data forward to a lithography tool, a step Nikon says helps enable more accurate overlay correction in advanced chipmaking.
The accuracy gain comes from a redesigned wafer holder that Nikon says significantly reduces errors generated during wafer chucking, the process of clamping a wafer in place for measurement. An enhanced light source also improves detection of alignment and overlay marks across a broader range of process conditions, which Nikon says produces more stable measurements. On the throughput side, a reworked wafer transfer mechanism increases robot transport speed, and the system can now handle wafers with more warp than earlier models could tolerate.
The interesting part for process engineers is what problem this targets: wafer-to-wafer bonding, where stacking wafers can introduce significant distortion that has to be characterized and corrected before the next exposure step. That challenge has grown more common as 3D device structures spread beyond CMOS image sensors into NAND flash and logic chips, with adoption expected to grow in DRAM as well. Alignment stations like the Litho Booster 1000 install alongside Nikon or third-party lithography systems without slowing the line, measuring deformation and misalignment while production continues.
Nikon has sold alignment station technology since 2018, and the Litho Booster 1000 extends that line rather than replacing the underlying approach. Development drew in part on research from a project commissioned by Japan's New Energy and Industrial Technology Development Organization, or NEDO, though Nikon has not detailed the scope of that involvement.
Pricing has not been announced. Nikon notes the January 2027 launch date and specifications are current as of publication and subject to change without notice, leaving room for the final configuration to shift before the system reaches fabs.
